JSJP_Student/jiaPei/Modules/OtherModules/ExerciseModule/ViewModel/ExercisePage/itemViewModel/RQExerciseAnswerItemViewModel.m

//
//  RQExerciseAnswerItemViewModel.m
//  JSJP
//
//  Created by 张嵘 on 2021/8/16.
//

#import "RQExerciseAnswerItemViewModel.h"

@interface RQExerciseAnswerItemViewModel ()
@property (nonatomic, readwrite, strong) NSString *answerString;
@property (nonatomic, readwrite, strong) RQYDTJSModel *ydtJSModel;
@property (nonatomic, readwrite, assign) CGFloat skillHeight;

@property (nonatomic, readwrite, strong) YYLabel *yyLabel;
@property (nonatomic, readwrite, strong) NSMutableAttributedString *skillString;

@end

@implementation RQExerciseAnswerItemViewModel
- (instancetype)initWithRQExerciseModel:(RQExerciseModel *)exerciseModel {
    if (self = [super init]) {
        @weakify(self)
        dispatch_async(dispatch_get_main_queue(), ^{
            @strongify(self)
            NSArray *allOptionsArr = @[@"A",@"B",@"C",@"D"];
            
            NSMutableArray *answerOptionArr = @[].mutableCopy;
            for (int i = 0; i < exerciseModel.ydtQuestionModel.AnswerTrue.length; i ++) {
                NSRange range;
                range.location = i;
                range.length = 1;
                NSString *indexStr = [exerciseModel.ydtQuestionModel.AnswerTrue substringWithRange:range];
                [answerOptionArr addObject:[allOptionsArr objectAtIndex:indexStr.integerValue - 1]];
            }
            self.ydtJSModel = [RQ_YDT_JS_Question_Module getQuestionJSWithQuestionId:exerciseModel.ydtQuestionModel.ID];
//            //ning 2023-5-24 一点通db 解题答案数据有异常-新整jq库进行修正。
//            self.ydtJSModel.qb_read_analyse = [YN_YDT_JQ_Question_Module getQuestionKTJQWithQuestionId:exerciseModel.ydtQuestionModel.ID];
            //于2023-08-18 年更新db完成-解决此问题
            self.answerString = [NSString stringWithFormat:@"答案 %@",[answerOptionArr.mutableCopy componentsJoinedByString:@" "]];
            __block CGFloat space = 0.f;
            if (RQObjectIsNil(self.ydtJSModel)) {
                self.skillHeight = 0.f;
                space = 0.f;
            } else {
                NSArray *knameList = [self getKeyRangeList:self.ydtJSModel.qb_analyse readText:self.ydtJSModel.qb_read_analyse];//获取关键字
                NSMutableAttributedString *text = [[NSMutableAttributedString alloc] initWithString:[NSString stringWithFormat:@"%@",self.ydtJSModel.qb_read_analyse]];
                text.yy_font = [UIFont systemFontOfSize:RQ_Exercise_Module.exerciseFontSize];
                text.yy_lineSpacing = 8;
                text.yy_color = RQ_MAIN_TEXT_COLOR_1;
                if(knameList){//替换关键字标红
                    @try {
                        for (NSDictionary *item in knameList) {
                            NSArray *values = item.allValues.firstObject;
                            NSString *replacementString = item.allKeys.firstObject;
                            NSRange range = NSMakeRange([values[0] intValue], [values[1] intValue]);
                            NSDictionary *attributes = @{ NSForegroundColorAttributeName: RGB_COLOR(244, 0, 47),NSFontAttributeName: [UIFont systemFontOfSize:RQ_Exercise_Module.exerciseFontSize]};
                            [text replaceCharactersInRange:range withString:replacementString];
                            [text setAttributes:attributes range:NSMakeRange(range.location, range.length)];
                        }
                    } @catch (NSException *exception) {
                        NSLog(@"替换替换发生错误");
                    }
                }
                self.skillString = text;
                NSInteger line = RQ_COMMON_MANAGER.APP_SWITCH? 0 : ((RQ_VIP_Module.isSubject1Vip && RQ_YDTQuestion_Module.subject == RQHomePageSubjectType_SubjectOne)? 0 : ((RQ_VIP_Module.isSubject4Vip && RQ_YDTQuestion_Module.subject == RQHomePageSubjectType_SubjectFour)? 0 : 1));
                CGFloat height = (line == 0)? [self getMessageHeightWithAttributedStr:text andLabel:self.yyLabel] : RQ_FIT_HORIZONTAL(34.f);
                self.skillHeight = height;
                space = 6.f;
            }
            self.rowHeight = [_answerString heightForFont:[UIFont systemFontOfSize:19] width:RQ_SCREEN_WIDTH - (16 * 2) - (8 * 2)] + (8 * 2) + (16 * 2) + space + self.skillHeight;
        });
        
        
    }
    return self;
}

//获取字典
- (NSArray *)getKeyRangeList:(NSString *)originalText readText:(NSString*)readText {
    NSError *error = nil;
    NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:@"【(.*?)】" options:0 error:&error];
    NSMutableArray *array = nil;
    if (!error) {
        array = @[].mutableCopy;
        NSArray<NSTextCheckingResult *> *matches = [regex matchesInString:originalText options:0 range:NSMakeRange(0, originalText.length)];
        for (NSTextCheckingResult *match in matches) {
            NSMutableDictionary *dict = [NSMutableDictionary dictionary];
            NSRange matchedRange = [match rangeAtIndex:1];
            NSString *extractedText = [originalText substringWithRange:matchedRange];
            NSRange range = [readText rangeOfString:extractedText];
            dict[extractedText] = @[@(range.location),@(range.length)];
            [array addObject:dict];
            NSLog(@"Extracted Text: %@", extractedText);
            NSLog(@"Matched Range: %@", NSStringFromRange(matchedRange));
        }
    } else {
        NSLog(@"Regex Error: %@", error.localizedDescription);
    }
    return array;
}

- (CGFloat)getMessageHeightWithAttributedStr:(NSMutableAttributedString *)attributedStr andLabel:(YYLabel *)lb {
    lb.attributedText = attributedStr;
    CGSize introSize = CGSizeMake(RQ_SCREEN_WIDTH - (16 * 2) - (8 * 2), CGFLOAT_MAX);
    YYTextLayout *layout = [YYTextLayout layoutWithContainerSize:introSize text:attributedStr];
    lb.textLayout = layout;
    CGFloat introHeight = layout.textBoundingSize.height+10;
    return introHeight;
}

- (YYLabel *)yyLabel {
    if (!_yyLabel) {
        _yyLabel = [[YYLabel alloc] init];
    }
    return _yyLabel;
}

- (NSString *)itemClassName {
    return @"RQExerciseAnswerCell";
}

@end